I have a bath every night, no matter the weather. 30 mins reading my current book before washing and shaving. I have a bath thermometer and keep the temperature at 43.5 degrees c. Usually some muscle relaxing herbal bath salts. It’s the best part of the day. Pure bliss.
I have a hot tub, and if it’s any lower than 40 (a paltry max) I’m getting out. I add a few large pans of boiled water to my 40 degree tub.